I'm a bit of a newbie with Linux, but getting there slowly.
Just installed 18.3 on an HP Laptop that just describes itself as "15.6 inch Intel Pentium 4Gb ram, 1Tb hard drive, black.

My problem, along with many others I'm sure, is - no wireless.
I have searched and googled and tried many 'copy/paste' solutions, but none work so far.
I have a feeling that maybe a driver for this machine doesn't exist.

Many thanks chaps, that did it.
Did the micro thingy, then discovered I had 4.10, so did all the updates, rebooted and all fixed. Wireless working fine.
Now to see if I can get the Ham Radio Digi Keyer II working - but that's a different story.
Thanks again.